DocumentCode
1020136
Title
Vegetation clutter model
Author
Ulaby, Fawwaz T.
Author_Institution
Univ. of Kansas Center for Res. Inc., Lawrence, KS, USA
Volume
28
Issue
4
fYear
1980
fDate
7/1/1980 12:00:00 AM
Firstpage
538
Lastpage
545
Abstract
The statistical behavior of the radar backscattering coefficient 
of agricultural crops is examined. The data used were obtained by the microwave active spectrometer (MAS) systems in 1975 and 1976. Based on an evaluation of the angular and spectral variation of the mean, median, and 90-percent dynamic range of the (dB) histograms, empirical expressions describing the joint angular and frequency dependence of the mean and median were generated for each linear polarization configuration. The clutter model thus generated covers the angular range between 
(nadir) and 
and the frequency range between 1 GHz and 18 GHz. Decorrelation of with frequency spacing was also evaluated and modeled.
of agricultural crops is examined. The data used were obtained by the microwave active spectrometer (MAS) systems in 1975 and 1976. Based on an evaluation of the angular and spectral variation of the mean, median, and 90-percent dynamic range of the (dB) histograms, empirical expressions describing the joint angular and frequency dependence of the mean and median were generated for each linear polarization configuration. The clutter model thus generated covers the angular range between (nadir) and and the frequency range between 1 GHz and 18 GHz. Decorrelation of with frequency spacing was also evaluated and modeled.Keywords
Agriculture mapping; Radar imaging/mapping; Backscatter; Clutter; Crops; Dynamic range; Frequency dependence; Histograms; Polarization; Radar; Spectroscopy; Vegetation;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1980.1142377
Filename
1142377
Link To Document